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arm64: cmpxchg: implement cmpxchg64_relaxed
authorWill Deacon <will.deacon@arm.com>
Wed, 9 Oct 2013 14:54:28 +0000 (15:54 +0100)
committerMark Brown <broonie@linaro.org>
Thu, 15 May 2014 19:00:54 +0000 (20:00 +0100)
commit9e7ced5a249da2bec86d53d0e11e90b6a8e1afe2
treee0724fe0fb621b0fc175cefd61af9a5c11aeb483tree | snapshot
parent9f89c68bf6d720eae561dc5a796f727a57e8daeacommit | diff
arm64: cmpxchg: implement cmpxchg64_relaxed

This patch introduces cmpxchg64_relaxed for arm64 using the existing
cmpxchg_local macro, which performs a cmpxchg operation (up to 64 bits)
without barrier semantics.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
(cherry picked from commit cf10b79a7d88edc689479af989b3a88e9adf07ff)
Signed-off-by: Mark Brown <broonie@linaro.org>
arch/arm64/include/asm/cmpxchg.h diff | blob | history
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